<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

 <head>

  <title>CSS Test: margin collapsing - child has no clearance</title>

  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
  <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins" />
  <link rel="match" href="margin-collapse-031-ref.xht" />

  <meta name="assert" content="The top margin of an in-flow block-level element is adjoining to its first in-flow block-level child's top margin if the element has no top border, no top padding, and the child has no clearance." />

  <style type="text/css"><![CDATA[
  body
  {
  background-color: white;
  margin: 8px;
  }

  div#parent-block-container
  {
  background-color: red;
  margin: 0px;
  width: 100%;
  }

  div#child-block
  {
  background-color: green;
  color: white;
  margin: 100px 0px;
  }
  ]]></style>

 </head>

 <body>

  <div id="parent-block-container">
   <div id="child-block">
    Test passes if there is <strong>no red</strong>.
   </div>
  </div>

 </body>
</html>
